From java running on Windows, I need to access a file on a remote Ubuntu machine. I use the following:

URL U = new URL ( "http://" + SERVER_IP + ":" + SERVER_PORT + "/" + ClsName + ".class" );

where:

1. SERVER_IP is the Ubuntu IP address obtained from any site that shows the IP address of the machine you are using.
2. SERVER_PORT is the Ubuntu port where the server is listening.

Now:

1. Do I need to modify this code any further?
2. Do I need to configure the Windows and/or Ubuntu machine(s) for this to work?

Thank you